When I insert any of my Aneros models I only insert the tip of the device and maybe to first part of the main body. My anus then takes over and draws the device further in to where it wants it to rest. Each individual is slightly different when it comes to the depth and position of the prostate. Your body seems to know where to place the Aneros to suite you.

I'm 6'1" and I guess the aneros models are designed thinking that taller men's prostates are further in than shorter men. But I'm not sure that's the case, at least with me. I think every man is different. Maybe the SGX is something I should try?!? I've always thought about it. I guess the little difference in length can be all that matters for Super O :)

I've been looking at that one, looks good! I love the peridise because there's no tab.

What if Aneros made the MGX or Eupho, etc. with no tab?!?!?! What if it's like the end of the Peridise, a little handle-thing and a ball type thing that keeps it from going in, getting sucked in completely? That tab you hold on to on the Peridise prevents it from spinning around (it's nestled gently between my ass and anus, even though it moves freely the male anatomy will keep it in a straight line and not twist it). That would be awesome, maybe?????